<template>
  <div>
    <h3>商品列表</h3>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20" class="top">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="searchQuery" @change="searchQuery">
            <el-button slot="append" icon="el-icon-search" @click="searchQuery"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddGoods">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="95px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="200px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="125px">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="deleteGoods(scope.row)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[3, 5, 10, 15]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      // 保存商品列表信息
      goodsList: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 发起请求拿数据
    async getGoodsList() {
      const { data: res } = await this.$axios.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 每页容量改变
    handleSizeChange(size) {
      // 改变每一页数据条数
      this.queryInfo.pagesize = size
      this.getGoodsList()
    },
    // 页码改变
    handleCurrentChange(page) {
      // 改变页码
      this.queryInfo.pagenum = page
      this.getGoodsList()
    },
    // 删除商品
    async deleteGoods(row) {
      try {
        await this.$messagebox.confirm('是否删除该用户?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
        const { data: res } = await this.$axios.delete(`goods/${row.goods_id}`)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message.success(res.meta.msg)
        if (this.goodsList.length === 1) this.queryInfo.pagenum -= 1
        this.getGoodsList()
      } catch {}
    },
    // 查询商品
    searchQuery() {
      this.getGoodsList()
    },
    goAddGoods() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped>
.top {
  margin-bottom: 15px;
}
</style>
